Efraim Zuroff, the top Nazi hunter at the Simon Wiesenthal Center, noted that Wiesenthal himself was an inmate at Mauthausen when it was liberated by Americans in May 1945. Wiesenthal died in 2005 after devoting his life to tracking down Nazi war criminals so they could be brought to trial.

The Hill points out that this indictment comes only months after another suspect, Jakiw Palij, was deported from the United States to face trial. The 95-year-old Palij was believed to be the last surviving Nazi war crimes suspect in America.

New precedent in Germany has set the stage for these late prosecutions, under the legal reasoning that guards who helped the camps to function, and were aware of what that meant, can be charged as accessories. Another man, 94-year-old Johann Rehbogen, went on trial earlier this month in Germany for his alleged role as a guard at the Stutthof concentration camp in Poland from June 1942 to around September 1944.